Table of Contents

UART Setup

To approach to Raspberry Pi UART, you need to disable any other process that use it in Linux.
Depending on the distribution in use (for example raspbian), you have to do some file editing.

Disable kernel messages

When the Raspberry Pi boots up, all the bootup information is sent to the serial port.
If you have Carberry connected at bootup, it will receive this information over the serial port, and it's not right.
You can disable kernel messages by editing the file “cmdline.txt”: